Rim



Patented June 29, 1926.

VUNITED STATES 1,590,162 PATENT A OFFICE.

PRED n. KLAUS, or WARREN, OHIO,` AssrGNon To AMERICANWELDING AND MANU- FACTURING COMPANY, OF-WARREN, OHIO, A CORPORATION or' 01510.

nur.

4Application led November This invention relates to vehicle tire rims arid more particularly to demountable-rims wherein provision is made lfor applying and such-fa rim particularly adaptedfor receiving tires of small diameters and also'orreceiving tires which are intended to,be'run with a relatively low air pressure.

As the-diameter' of a demountable. rim is decreased to meet present' tendencies for tires of smaller inside diameters it becomes increasingly difhcult to 'contract a split rim having the usual integral side flanges for straight side tires, so that one end of the rim will move radiallyl inwardly sulciently to pass beneath the other end\of the rim, and thus permit the tire to.be removed from the rim.

I lt isv also essential to provide a locking means for the split rim to prevent uninten` tionalcollapse of the rim so that the tiro will be securely held on the rim and the rim, when mounted on the wheel, will at all times be securely andrigidly held in place even though a'pneumatic tire with relatively low air pressure be utilized and even though sudden deflation of the tire takes place.

Further objects of my invention, theref fore, are to provide a rim which can be more easily collapsed to apply or remove 4a tire and also to provide a rim having an endless side memberwhich will remain securely V'in place when the tire carrying rim is mounted on the fixed im of a wheel bodyi'rrespective of the amount of air pressure in the tire.

yThese and other objects will be apparent fromthe following descriptionl and annexed drawings, in which- Figure l is a section on line l-f-l, lEi'g.` 2,

' split.

3 3, Fig. 2.

Fig. 4 is a perspective View of the con necting plate.;

Fig. 5. is a view of the stud for securing the plate to the rim.

lin the drawing is, comprising a one-piece base member l, transversely split preferably diagonally of the rim as shown at '2, and an endless side mem- 'lessv side member'3.

turned portion 8 is inclined inwardly rela-\ll AFig-2 is a plan view of the rim at the Fig. 3 is a longitudimill section on. linev shown a rim assembly a, l1924. serial no. 747,510.

ber 3f The b'ase member 1`is provided with a tire retaining flange la and, together with the endless side member' 3 -and the tire re-l taining flange 3?, constitutes an annular rim vof suitable shape to receive a straight sido pneumatic tire.

Tear lthe outer side'of the `baise-member l is va flange 5 having an intu'rned portion a 4laterally extending portion 7 andan outturned portion 8 formi-ng a channel 9 at the outer side of 'the base member 1 to receive an annular rib or flange 10 on theendj Preferably the out-" tive to the tire vengaging surface of thebasc L member at a relatively slight angle and preferably the inturned: portion 6 is similarly inclined so that an oblique groove is formed. -The endless side-member 3 comprises a tireretaining flange 3a at its outer side, and at its inner side is Iformed with an inwardly extending annular flange or rib 10 which is correspondingly inclined to be' received within the inclined`walls of the channel 9.I It will be seen that the Hange 10 of` the side member 3 substantially iills the inclined channel and terminates adjacent the inner 'wall of said channel and that the line of engagement at the outer surface of the rim between the base member l and the side member 3-is substantially within the tire bead supporting zone'of the rim face.

As the radially outer face of the flange 8 is below the tire engaging surface of the ba'se member l, the portion of the endless -side member 3, adjacent to the flange 10 is adapted to seat securely on said faceand i provide a tire receiving surface substantially inl alignment with the surface of, the base" l member 1. It. will thus be seen` that the side member 3 is rigidly yheld in position' throughout `its circumference on the channel wall 8.

The, fixed rim 1'5 of a wheel body, which in the drawing is indicated as the usual metal box felly, has radially1 voutwardly extending ilangesl, 17 outturned orotherwise shaped to form seats thereon to engage -cooperative surfaces ven the bead e and the f flange 7 of the rim. The rim'is held apen the fixed rim l5 by any suitable holding means such as well known clamps. lli-desired, clampsvor lugs 2O may be riveted to the `endless side meml ree ber 3, as indicated in Fig.' 1, the clamps 20 being provided with bolt receiving apertures 21 to be engaged by a suitable bolt (not shown) passing through the fixed rim.

If it be desired to positively prevent the end 22 of the rim adjacent the split from moving radially inwardly when the tire is on the rim, a plate 23 may be removably secured to the end 24 of the rim in any suitable manner, as by the stud 25-riveted to thel end 24 of the rim and carrying a nut 26 to hold the plate in place. The plate 23 eX- tends across the split and engages the end 22 of the rim and is preferably provided with an outturned hook 27 which engages an aperture 28 formed in the end 22 of the rim.

Preferably the ends of the rim' are not onlycut with a diagonal transverse split, but the split is also preferably beveled at a sli ght angle to the radius so that the end 22 lof.

the rim partially underlies the end 24. Thus when thetire isiiniiated movement of the end 24 of the rim radially inwardly will be prevented and movement of the end 22 of the rim will be prevented by the plate 23 if such be used. It will be seen that by having the wall 8 of the groove 9 inclined obliquely, movement -of the ends of the rim radially vinwardly will be effectively prevented when" the tire is iniiated as the pressure of the tire tends to force the' member 3 laterally to hold l the rib 10 in engagement with the flange- 8.

It, will be 'obvious from-the construction that when the base member 1 carries the tire and is vmounted upon the fixed rim 15 of the wheel body, a very rigid construction is ob' tained, as the split `base member 1 seats on the flanges 16, 17 of the fixedl rim 15 and the'ends 22, 24 of the rim are held against radial outward movement by .the endless side member 3.

vWhen the rim is demounted from the wheel it is only necessary to contract the base member by removing the plate23 and causing the end 22 to be moved radially inwardly an amount equal to the height of the flange. 8, when the endless side member 3 can easily be removed and the tire 'easily taken olf the rim 1. By inserting a screw driver between the -iiange 8 and the side member 3, the end 22 of the base member can bev readily moved inwardly the smallamount necessary for it to underlie the end 24 and the side 'member 3 can be very easily taken out of the tire by hand.

It will thus be seen that I have provided a rim particularly adapted to receive a pneumatic tire'which, when the rim is 'mounted upon the iXed rim of a wheel bodyy will rigidly and securely hold the tire, even though the tire be deated or have a relatively low air pressure and yet the tire may b e readily applied to or removed from th It will also be seen that due-to the.`fact that one end of the rim need only be moved radially inwardlya small amount it is easy dure can be made without departing from my invention as defined inthe appended claims.

What I claim is: l e 1. A demountable rim assembly compris- .ing a one piece transversely split base member, a tire retaining flangeformed on one ledge portion of the base member and an outwardly opening annular channel formed along the other edge portion, the walls of said channelv being obliquely disposed with respect to the plane of the wheel, the outer 'wall-of saidchannel terminating radially inwardly of the tire seating surface of the base member, an endlessside member having an inwardly extending flangeat one edge adapted to be received in and substantially vlill sa'id channel'and terminating adjacent the laterally inner' side wall thereof, a tire retaining 'ange formed along the other edge portion o'fsaid side member, said side memberbeing adapted tovseat securely on the radially outer -face of the outer wall of the channel.

2. A demountable rimassembly compris ber having`the opposing faces of the transverse` split so besreled that -one end portion `overlies the other end portion of the base member at the split, said transverse split extending diagonally across the base mem ber, a tire retaining ange formed on one edge portion of the base member and an outwardly opening annular channel `formed along'the other'edge portion, the outer wall of said, channel terminating radially in wardly of the tire seating surface ofthe base member, an endless side member having an inwardly extendin adapted to be receiv in and substantially fill said channel and terminating adjacent the laterally inner side wall thereof, a tire flange at one edge.

ling a base member separated transversely retaining flange formed along the-'otheredgey portion of said side member, said side member being adapted to seat securelyfon the radially outer. face of theouter wall of the channel.

with a diagonal split and having an outer tire retaining flange on one side and formed 'atvz its other side with inwardly vand out- 4. A demountable rim assembly comprising a base member separated transversely with a .diagonal split and-having an outer.

tire retaining flange on one side and an outwar'dly opening annular channel.' on the other Iside, the outer wall fof said ,channel being. inclined inwardly relative to the tire engag' ing lsurface of'the'base meinbe'and a onepiece, endless, annular sidememberjhaving a tire retaining flange at one side and termi natingat the other .side in an inwardly extending'rib adapted to fit within said channel, the ends of said base 'member .being beveled at. a relatively small angleto the radial-direction.

5. A demou'ntable rim assembly',l compris l side and terminating at the other side in an being'beveled 'at arelatively small ang-le to inwardly extendingribadapted to fit within said channel, the ends lof said base member the radial direction. i

.formed along one edge portion and an -annuing a base member separated transversely with a diagonal split and having an outer tire retaining flange on one side and an .outwardly opening annular channel on the other side, the outer Wall of said channel A being inclined relative to the'tir'eengaging,

surface of the base member,`anda one-piece,

endless, annular side member having 'a tire' retainingflange at one side and terminating 'at the other side in an inwardly extending rib adaptedl to fitwithin said channel, the

ends of said base member lbeingbeveled at a `relatively smalll angle to .the radial direction, and a `plate removably carried byone *end of the base` member adjacent the 'split and extending across the split. 'l

6. A demountable rim assembly compris ing -a base member separated transversely" with a' diagonal split and having an outer tire retaining flange on one4 side and formed at its other side with inwardly and outwardly ing .albase member 'separated transversely vextending flanges forming an outwardly opening annularchannel, a one-piece, endless, annular side member having a tire re- 'taining flange on one side and terminating ,at the other side in an linwardly extending rib adapted to fit within said channel, and

.a removable plate carried .by one end of the base member adjacent the split and extendin across the split, said base member ends being beveled so that they incline radially outwardl toward the end of the base mem-V berto' w 'ch said plate is secured.

ber, one of the vradially innerfacesvof the 8. demountable rim assembly comprising a one-piece base member transversely separated and having a Itire' retaining flange channel portion thereof forming a seating surface 'for the base member adapted tobe f engaged .by a wheel assembly, and 'an endless side member` adapted to seat securely on the radially outer Wall of thechann'el and having an inwardl extending annular-rib formed along one e ge portion thereofand a tire retaining flange formed alngthe other edge portion thereof, said rib portion being disposed within the' bead supporting z'one of the rim face..

9. A demountablerim assemblyv comprising a sin le piece base member separated transverse y and having a tire retaining flange formed .by one edge portion and an annular channel formed by the other edge portion of the base member, theouter wall of the channel being inwardly inclined relative to the tire enga g surface of the base member, and an end ess side member having an inwardly extending oblique annular rib `channel and interlock with the base member 7 A demountable'rim assembly compris through the action of a tire mounted on said rim to prevent disengagement of said members'when the rim assembly is demounted,

said endless side member terminating adjacent the inner wall` of the channel, and having a tire retaining flange formed by the other edge portion thereof. In testimony whereof, I hereunto my signature.

' FRED R.. KLAUS. 

